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Post by herois on Jan 14, 2018 10:37:36 GMT
extruder stopped giving a filament, I connected it to another axis and it works, I also connected the motor from the Z axis to the extruder output and the motor does not work or is it damaged the motherboard? www.youtube.com/watch?v=-myvZBsXJYY#action=shareprinter DMSCREATE DP5 Marlin 1.1.4 |
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Post by tanephar on Jan 14, 2018 19:56:07 GMT
Not the board, but a blockage either in the nozzle or the throat. To clear, pre-heat hotend, see if you can manually push filament through, if not you will need some very fine wire to clear the nozzle by inserting into the tip, personally I use these www.aliexpress.com/item/10pcs-lot-3D-printer-makerbot-mendel-reprap-cleaning-nozzle-drill-0-4mm-0-3mm-0/32433133868.html?spm=a2g0s.8937460.0.0.ssLOHa. If that doesn't work, you may find that the throat is blocked or damaged. I spent hours trying to clear a blockage, thinking it was nozzle, wrong, it was the ptfe tube in the throat had moved down and deformed because of heating. I have now found good practice is to clean the nozzle after a print, with one of those bits. |
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Post by herois on Jan 15, 2018 21:33:26 GMT
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Post by tanephar on Jan 16, 2018 1:05:20 GMT
You need the hot end up to temperature even when trying to run an extrusion with no material, the reason for this is in the firmware is a cold extrusion protection value. If the hot end is not up to temp then there is no signal sent to the motor. I see from the video extruder or hotend 20°. // @section extruder // This option prevents extrusion if the temperature is below EXTRUDE_MINTEMP. // It also enables the M302 command to set the minimum extrusion temperature // or to allow moving the extruder regardless of the hotend temperature. // *** IT IS HIGHLY RECOMMENDED TO LEAVE THIS OPTION ENABLED! *** #define PREVENT_COLD_EXTRUSION #define EXTRUDE_MINTEMP 170 So you can see it here, run at temp and try again, motor will run. |
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Post by tanephar on Jan 16, 2018 10:05:50 GMT
There is no problem with your board, it is doing exactly as it should and obeying the firmware command, PREVENT_COLD_EXTRUSION, with no temperature at the hot end then no signal is sent to the driver. I have run this test today myself and with a temperature below 170° dialed up the stepper motor will not drive. Refer to your temperature settings as captured from your video.  |
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Post by herois on Jan 18, 2018 21:53:53 GMT
thank you for your answer and help, you have helped the printer work properl, I did not know that the low temperature blocks the extruder.
Thank You
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Post by tanephar on Jan 19, 2018 0:21:46 GMT
thank you for your answer and help, you have helped the printer work properl, I did not know that the low temperature blocks the extruder. Thank You Glad to be of service, don't forget clean the nozzle when you change filament, those 0.4mm drills are awesome, have saved me a lot of problems, again cleaning the nozzle needs to be done at temperature. In fact a little tip run autotune PID, change filament and clean nozzle all at the same time, works a treat believe me. |
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